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104919943 = 4113718679
BaseRepresentation
bin1100100000011…
…11001110000111
321022102111002211
412100033032013
5203324414233
614224444251
72412543022
oct620171607
9238374084
10104919943
11542519a7
122b179687
131897700b
14dd121b9
1593275cd
hex640f387

104919943 has 8 divisors (see below), whose sum is σ = 108269280. Its totient is φ = 101608320.

The previous prime is 104919889. The next prime is 104919959. The reversal of 104919943 is 349919401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104919943 is a prime.

It is a super-2 number, since 2×1049199432 = 22016388878246498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104919896 and 104919905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104919973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3723 + ... + 14956.

It is an arithmetic number, because the mean of its divisors is an integer number (13533660).

Almost surely, 2104919943 is an apocalyptic number.

104919943 is a deficient number, since it is larger than the sum of its proper divisors (3349337).

104919943 is a wasteful number, since it uses less digits than its factorization.

104919943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18857.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 104919943 is about 10243.0436394658. The cubic root of 104919943 is about 471.6494677282.

The spelling of 104919943 in words is "one hundred four million, nine hundred nineteen thousand, nine hundred forty-three".

Divisors: 1 41 137 5617 18679 765839 2559023 104919943